{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157194",
    "entityType": "User",
    "nonce": "0x4523cd4f57016e6b7fc192a5a665d4572855c36df4b121efa461371db0cf8f74",
    "signature": "0xb6ae8bcad930a3bef9f525d69c45c34e63e128e314637bcd60ca4e4d5dceb9534f0b2b62d31d6adb5f6765870b62eeb8757575f1e27a9839eaf5eb1db5a64f6f1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}